针对 XSD 验证 XML 时出错 [英] Error while validating XML against XSD

问题描述

我有一个简单的 XML 文件，我想根据 XSD 对其进行验证.当我使用一些随机验证器进行验证时，我总是收到以下错误:

I got a simple XML file that I want to validate against an XSD. When I validate with some random validator, I always get the following error:

发现以元素实体"开头的无效内容.应为{Entities}"之一.

Invalid content was found starting with element 'Entities'. One of '{Entities}' is expected.

这是 XML:

<BusinessModel xmlns="http://schemas.testxyzxyz.de/xyz/BusinessModel" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Entities>
    <Entity Name="Customer">
        <Attribute Name="Forename" Type="String" />
        <Attribute Name="Surname" Type="String" />
        <Attribute Name="Birthday" Type="Date" />
    </Entity>
</Entities>
</BusinessModel>

以及 XSD:

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
        targetNamespace="http://schemas.testxyzxyz.de/xyz/BusinessModel"
        xmlns="http://schemas.testxyzxyz.de/xyz/BusinessModel">

<xsd:element name="BusinessModel" type="BusinessModelType" />

<xsd:complexType name="BusinessModelType">
    <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:element name="Entities" type="EntitiesType" />
    </xsd:choice>
</xsd:complexType>

<xsd:complexType name="EntitiesType">
    <xsd:sequence>
        <xsd:element name="Entity" type="EntityType" maxOccurs="unbounded" />
    </xsd:sequence>
</xsd:complexType>

<xsd:complexType name="AttributeType">
    <xsd:attribute name="Name" type="xsd:string" use="required" />
    <xsd:attribute name="Type" type="xsd:string" use="required" />
</xsd:complexType>

<xsd:complexType name="EntityType">
    <xsd:sequence>
        <xsd:element name="Attribute" type="AttributeType" maxOccurs="unbounded" minOccurs="1" />
    </xsd:sequence>
        <xsd:attribute name="Name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:schema>

几个小时以来一直在寻找那个问题，但我仍然没有发现错误.你能找到我正确的方向吗?;)

Looking for that issue since hours, and I still don't find an error. Can you spot me the right direction? ;)

推荐答案

XML元素声明架构组件的表示:

{目标命名空间}

如果 form 存在并且它的实际值是 qualified，或者如果 form 不存在并且 < 祖先上的 elementFormDefault 的 em>实际值 是 qualified，那么 实际值 元素信息项的targetNamespace [attribute] 的em>，如果没有，则不存在，否则缺席.

If form is present and its actual value is qualified, or if form is absent and the actual value of elementFormDefault on the <schema> ancestor is qualified, then the actual value of the targetNamespace [attribute] of the parent <schema> element information item, or absent if there is none, otherwise absent.

由于elemeFormDefault的默认值是unqualified，除非另有说明，本地元素必须是unqualified.

Since the default value of elemeFormDefault is unqualified, unless otherwise specified the local elements must be unqualified.

自从您设置了 xmlns="http://schemas.testxyzxyz.de/xyz/BusinessModel" 后，Entities 就成为合格的.解决方法是将 elementFormDefault="qualified" 设置为 @polishchuk 所写.

Since you set the xmlns="http://schemas.testxyzxyz.de/xyz/BusinessModel", the Entities became qualified. The fix is to set elementFormDefault="qualified" as @polishchuk wrote.

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